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【单选题】
高碘酸氧化法测甘油含量时,n甘油与nNa2S2O3之间的化学计量关系为()
A.
n甘油=1/2nNa2S2O3
B.
n甘油=1/3nNa2S2O3
C.
n甘油=1/4nNa2S2O3
D.
n甘油=nNa2S2O3
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【多选题】定额是( )的重要手段。
A.
节约社会劳动
B.
提高劳动生产率
C.
计算企业的必要劳动量
D.
控制企业的总劳动量
【简答题】看图,选择相应的对话。 (     ) 1. A. — I'm new here. — Welcome! (     ) 2. B. — We have a new friend here! — Hi! I'm John. (     ) 3. C. — Good morning! — Good morning! (     ) 4. D. — I'm from America. — I'm fr...
【单选题】新剑桥模型认为,与利润收入者相比,工资收入者的储蓄率:
A.
较高
B.
较低
C.
相等
D.
不确定
【判断题】冬天腌咸鸭蛋的时间要比夏天的时间短。()
A.
正确
B.
错误
【判断题】Register is related to how we communicate, through speech or writing. ()
A.
正确
B.
错误
【简答题】We are told that a high-tech cash register is really just ______.
【简答题】Hi, I’m Sam from New York. I have a brother called Tim. We are twins. We are both eleven this year. I am ten minutes older than him. In some ways, we look the same and in some ways, we look different....
【单选题】新剑桥模型认为,与利润收入者相比,工资收入者的储蓄率()
A.
提高
B.
下降
C.
不变
D.
变化不确定
【单选题】听力原文:We haven't hired a new technician yet, have we? (A) No, you have to reach a bit higher. (B) No, do you have someone in mind? (C) He works in the high-tech industry. (6)
A.
B.
C.
【判断题】We register a new high in sales.
A.
正确
B.
错误
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